4881651851 has 4 divisors (see below), whose sum is σ = 4985516832. Its totient is φ = 4777786872.

The previous prime is 4881651769. The next prime is 4881651877. The reversal of 4881651851 is 1581561884.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4881651851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 103864933 = 4881651851 / (4 + 8 + 8 + 1 + 6 + 5 + 1 + 8 + 5 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4881651796 and 4881651805.

It is not an unprimeable number, because it can be changed into a prime (4841651851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51932420 + ... + 51932513.

It is an arithmetic number, because the mean of its divisors is an integer number (1246379208).

Almost surely, 2^4881651851 is an apocalyptic number.

4881651851 is a deficient number, since it is larger than the sum of its proper divisors (103864981).

4881651851 is a wasteful number, since it uses less digits than its factorization.

4881651851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103864980.

The product of its digits is 307200, while the sum is 47.

The square root of 4881651851 is about 69868.8188750891. The cubic root of 4881651851 is about 1696.3765789798.

The spelling of 4881651851 in words is "four billion, eight hundred eighty-one million, six hundred fifty-one thousand, eight hundred fifty-one".